Periodic table

What is the main function of the periodic table?

• To predict weather patterns

• To organize elements based on their properties

• To display chemical reactions

• To illustrate atomic models

Who created the periodic table that is widely accepted today?

• Albert Einstein

• Marie Curie

• Isaac Newton

• Dmitri Mendeleev

In which way are elements arranged in the periodic table?

• By their color

• In rows called periods and columns called groups

• Randomly

• By their size

What do elements in the same group have in common?

• They have the same number of protons

• They are all metals

• They have the same number of valence electrons

• They are all gases

What happens to the atomic radius as you move down the periodic table?

• It increases

• It decreases

• It stays the same

• It increases

What is ionization energy?

• The energy to add an electron to an atom

• The energy required to split an atom

• The energy to change the state of matter

• The energy required to remove an electron from an atom

   

Which element has a very low ionization energy?

• Helium

• Francium

• Neon

• Lithium

What trend does electronegativity follow in the periodic table?

• It decreases as you move left to right

• It remains constant

• It increases as you move left to right

• It is random

Which element has the highest electron affinity?

• Sodium

• Chlorine

• Fluorine

• Oxygen

What is the significance of noble gases in the trends observed in the periodic table?

• They have no trends

• They are radioactive

• Their electron shells are full, affecting trends

• They are the heaviest elements